Add InPost Pay integration to admin templates

- Created a new template for the cart rule form with custom label, switch, and choice widgets.
- Implemented the InPost Pay block in the order details template for displaying delivery method, APM, and VAT invoice request.
- Added legacy support for the order details template to maintain compatibility with older PrestaShop versions.

modules/inpostizi/src/Uuid/Uuid.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace izi\prestashop\Uuid;
+
+abstract class Uuid implements \JsonSerializable
+{
+    public const CANONICAL_FORMAT_LENGTH = 36;
+
+    private $uuid;
+
+    public function __construct(?string $uuid = null)
+    {
+        if (null === $uuid) {
+            $this->uuid = static::generate();
+        } else {
+            $version = preg_match('/^[0-9a-f]{8}(?:-[0-9a-f]{4}){3}-[0-9a-f]{12}$/Di', $uuid) ? (int) $uuid[14] : false;
+
+            if (false === $version || $version !== static::getVersion()) {
+                throw new \DomainException(sprintf('Invalid UUIDv%d: "%s".', static::getVersion(), $uuid));
+            }
+
+            $this->uuid = strtolower($uuid);
+        }
+    }
+
+    public static function v4(): UuidV4
+    {
+        return new UuidV4();
+    }
+
+    public function __toString(): string
+    {
+        return $this->uuid;
+    }
+
+    public function jsonSerialize(): string
+    {
+        return $this->uuid;
+    }
+
+    abstract protected static function generate(): string;
+
+    abstract protected static function getVersion(): int;
+}

modules/inpostizi/src/Uuid/UuidV4.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace izi\prestashop\Uuid;
+
+final class UuidV4 extends Uuid
+{
+    protected static function generate(): string
+    {
+        $uuid = random_bytes(16);
+        $uuid[6] = $uuid[6] & "\x0F" | "\x40";
+        $uuid[8] = $uuid[8] & "\x3F" | "\x80";
+        $uuid = bin2hex($uuid);
+
+        return implode('-', [
+            substr($uuid, 0, 8),
+            substr($uuid, 8, 4),
+            substr($uuid, 12, 4),
+            substr($uuid, 16, 4),
+            substr($uuid, 20, 12),
+        ]);
+    }
+
+    protected static function getVersion(): int
+    {
+        return 4;
+    }
+}